Eric Walker added Missing: One Black Hole With 10 Billion Solar Masses - The New York Times to a number of topics

Eric Walker added Watch This Black Hole Blow Bubbles - The New York Times to a number of topics

Eric Walker added Watch This Black Hole Blow Bubbles - The New York Times and Missing: One Black Hole With 10 Billion Solar Masses - The New York Times to Very Large Array (VLA), and added Very Large Array (VLA) to New Mexico and Telescopes, observatories and telescope networks

Eric Walker added a number of topics and r/geology - The Dee Wright Observatory in Sisters, Oregon. It sits in the middle of a lava flow and made of the rocks it surrounds. to Telescopes, observatories and telescope networks, and added Telescopes, observatories and telescope networks to Astronomy, astrophysics and cosmology and Measuring instruments and measurement techniques

Eric Walker added a number of topics and a number of links to New Mexico, and added New Mexico to US states and territories